Finding the Fourth Proportional to 2,089.33, 3,135.57 and 1,429.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089.33 : 3,135.57 = 1,429.63 : x
2. Step 2: Convert to fraction form
   2,089.33/3,135.57 = 1,429.63/x
3. Step 3: Cross multiply
   2,089.33x = 3,135.57 × 1,429.63
4. Step 4: Simplify right side
   2,089.33x = 4,482,704.94
5. Step 5: Solve for x
   x = 4,482,704.94/2,089.33
6. Step 6: Final answer
   x = 2,145.52